EN Standards for Stainless Steel Hot Rolled Plate

For hot rolled stainless steel the old BS1449 and BS1501 standards have been replaced by EN Standards:

Tolerances

For cold rolled plate please refer to the datasheet on cold rolled.

Note that in this datasheet there are two sets of tolerances tables – One set for Quarto Plate to EN10029 and one set for CPP plate to EN10051

For CPP there are 3 categories of tolerances according to the grade where:

  • B = Ferritic & martensitic grades
  • C = Austenitic grades without Mo
  • D = Austenitic grades with Mo

Flatness - Quarto Plate

Thickness (mm)Tolerances (mm) over Given Length (mm)Tolerances (mm) over Given Length (mm)

1000

2000

3.0 to 4.9

9

14

5.0 to 7.9

8

12

8.0 to 14.9

7

11

15.0 to 24.9

7

10

25.0 to 39.0

6

9

40.0 to 250.0

5

8

Flatness - CPP

Width (mm)Tolerances for Given Category*Tolerances for Given Category*Tolerances for Given Category*

B

C

D

Up to 1200

18

23

**

1200 to 1500

23

30

**

Over 1500

28

38

**

Note:

* These flatness tolerances only apply for thicknesses up to 25mm

** To be agreed at the time of enquiry and order

Length - Quarto Plate

Length (mm)Tolerance (mm)Tolerance (mm)

Under 4000

-0

+20

4000 to 5999

-0

+30

6000 to 7999

-0

+40

Length - CPP

Length (mm)Tolerance (mm)Tolerance (mm)

Under 2000

-0

+20

2000 to 7999

-0

0.05 x Length

Width - Quarto Plate

Nominal Thickness (mm)Tolerance (mm)Tolerance (mm)

Up to 40

-0

+20

40 to 150

-0

+25

150 to 400

-0

+30

Width - CPP

Length (mm)Plus Tolerances (mm) (-0)Plus Tolerances (mm) (-0)

Up to 1200

+20

+3

1201 to 1850

+20

+5

Over 1850

+25

+6

Thickness - Quarto Plate

Thickness (mm)Tolerance (mm) Class BTolerance (mm) Class B

Minus

Minus

Plus

3.00 to 4.90

0.3

0.7

5.00 to 7.90

0.3

0.9

8.00 to 14.9

0.3

1.1

15.0 to 24.9

0.3

1.3

25.0 to 39.9

0.3

1.7

40.0 to 79.9

0.3

2.3

80.0 to 149

0.3

2.9

150 to 250

0.3

3.3

Thickness - CPP

Thickness (mm)Tolerances +/- (mm) for Given WidthTolerances +/- (mm) for Given WidthTolerances +/- (mm) for Given WidthTolerances +/- (mm) for Given Width

Up to 1200

1204 to 1500

1501 to 1800

Over 1800

Up to 2.00

0.17

0.19

0.21

-

2.01 to 2.50

0.18

0.21

0.23

0.25

2.51 to 3.00

0.20

0.22

0.24

0.26

3.01 to 4.00

0.22

0.24

0.26

0.27

4.01 to 5.00

0.24

0.26

0.28

0.29

5.01 to 6.00

0.26

0.28

0.29

0.31

6.01 to 8.00

0.29

0.30

0.31

0.35

8.01 to 10.00

0.32

0.33

0.34

0.40

10.01 to 12.50

0.35

0.36

0.37

0.43

12.51 to 15.00

0.37

0.38

0.40

0.46

15.10 to 25.00

0.40

0.42

0.45

0.50

Note:

These figures must be increased for stainless steel by:

  • 15% for Ferritic & Martensitic
  • 30% for Austenitic
  • 40% for Moly Grades

Material Certification

Where multi-certification is required, a combination of EN10088-2, EN10028-7, EN10029 or 10051 will appear together with the appropriate ASTM Standards.

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